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Fluorescence spectrometer

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Contact details

Jager, W.F.
Applied Sciences (TNW), DCT/Nano Struc. Materials
Julianalaan 136, 2628 BL Delft
Tel : +31 (0)15 27 82626
E-mail : W.F.Jager@tudelft.nl
Website : Open website

General Information


Fluorescence spectrometer


Faculty of Applied Sciences, Julianalaan 136, 2628 BL Delft

Key words:

phosphorescence, spectrometry, fluorescence, fluorimetry

Measured quantity:

Molecules can absorb photons of light and at a later time emit photons. Often the ejected light is of longer wavelengths than that absorbed. Depending on the time it takes to emit the photons, this process is known as either fluorescence or phosphorescence. The SPEX Fluorolog 3 can measure both. It can also count the photons being emitted and the rate (lifetime) of the photon emission.

Main application:

Fluorescence spectroscopy can be used to identify and analyze fluorescent compound at very low concentration (in the parts per billion range) while providing information about structure, formulation, and stability. Both solids and liquid samples can be analyzed using fluorimetry.

Instrument specification


Fluorolog 3

  • High sensitivity (not less than S/N 4,000:1)
  • High-speed measurements
  • Fluorescence measurement of near-infrared to infrared ranges
  • Can detect 50-femtomolar fluorescein
  • All-reflective optics
  • Multitude of applications through a wide range of attachments
  • Supports numerous time-dependent applications, including energy transfer and dynamic polarization cancellation
  • Fully automated through computer control